title: Laminar distribution of preferred orientations in foveal striate cortex of the monkey.
abstract: Microelectrode penetrations normal to the layers of foveal striate cortex in awake, behaving monkeys have revealed two new facts about the distribution of orientation preferences in this tissue: (1) In the top layers there is a predominance of vertical orientation preferences at eccentricities of less than 30 min, and a predominance of oblique orientation preferences at eccentricities of 30 min to 2 deg. (2) At all eccentricities between 0 and 2 deg there is a striking difference in orientation preference between upper layer (supragranular) and lower layer (infragranular) cells.
mesh_terms: D000818:Animals; D004553:Electric Conductivity; D000882:Haplorhini; D008839:Microelectrodes; D014793:Visual Cortex / Q000033:anatomy & histology / Q000502:physiology*; D014851:Wakefulness